42LH90QR (CHASSIS:LP91C) - LG TV Service Manual (repair manual). Page 13

(1) Color analyzer(CA100+, CA210) should be used in the

calibrated ch by CS-1000

(2) Operate  the  zero-calibration of the CA100+ or CA-210,

then stick sensor to the module when adjusting.

(3) For manual adjustment, it is also possible by the following

sequence.

1) Select white pattern of heat-run by pressing “POWER

ON” key on remote control for adjustment then operate
heat run longer than 15 minutes. (If not executed this
step, the condition for W/B may be different.)

2) Push “Exit” key.
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5) Push the ADJ key -> Enter “0000” (Password)
6) Select “3. W/B ADJUST”
7) Enter the W/B ADJUST Mode
8) Stick the sensor to the center of the screen and select

each items (Red/Green/Blue Gain and Offset) using

D

/

E

(CH +/-) key on R/C..

9) Adjust R/ G/ B Gain using 

F

/

G

(VOL +/-) key on R/C.

10) Adjust three modes all (Cool / Medium / Warm) : Fix

the one of R/G/B gain and change the others

11) When adjustment is completed, Enter “COPY ALL”.
12) Exit adjustment mode using EXIT key on R/C.

* CASE

First adjust the coordinate far away from the target value(x, y).
1) x, y > target

i) Decrease the R, G.

2) x, y < target

i) First decrease the B gain,
ii) Decrease the one of the others.

3) x > target, y < target

i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R

4) x < target, y > target

i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G

(4) Standard color coordinate and temperature when using the

CA100+ or CA210 equipment

- The Time Table of color coordinates by SET Aging Time

In the SET applied LED module (LH90QR Series), cause
of the physical characteristics of LED Module, sets are
taken a 120 minutes by aging time to stabilize a color
coordinates. So White Balance Control equipments have to
get the SET Aging Time from the SET and then going to
control the W/B by revise color coordinates at each time

To check the Coordinates of White Balance, you have to
measure at the below conditions.
Picture Mode : Select Vivid and change
Dynamic Contrast : Off
Dynamic Colour : Off
-> Picture Mode change : Vidid -> Vivid(User)
(If you miss the upper condition, the coordinates of W/B
can be lower than the spec.)

Step 1. Turn on the TV set.
Step 2. Press “EYE” button on the Adjustment remote control.

Step 3. Block the Intelligent Sensor module on the front C/A

about 6 seconds.

When the “Sensor Data” is lower than 20, you can see
the “OK” message -> If it doesn’t show “OK” message,
the Sensor Module is defected one.
You have to replace that with a good one.

Step 4. After check the “OK” message come out, take out your

hand from the Sensor module. -> Check “Sensor
Data” value change from “0” to “300” or not. 

If it doesn’t change the value, the sensor is also
defected one.
You have to replace it.

- 13 -

H/R Time

Cool

Medium

Warm

(Min)

X

Y

X

Y

X

Y

276

283

285

293

313

329

1

~5

284

301

293

311

321

347

2

6~20

280

288

290

301

320

338

3

21~30

278

285

287

297

316

334

4

31~

276

283

285

293

313

329